// Description: 验证码渠道枚举类
class VerificationCodeChannel {
  static const sms = VerificationCodeChannel('1', '短信');
  static const email = VerificationCodeChannel('2', '邮箱');

  final String value;
  final String label;

  const VerificationCodeChannel(this.value, this.label);

  // 支持通过字符串值查找枚举实例
  static VerificationCodeChannel? fromValue(String? value) {
    return {
      '1': sms,
      '2': email,
    }[value];
  }

  // 支持 toString() 直接输出 value
  @override
  String toString() => value;

  // 可选：支持 == 比较
  @override
  bool operator ==(Object other) =>
      identical(this, other) ||
      other is VerificationCodeChannel &&
          runtimeType == other.runtimeType &&
          value == other.value;

  @override
  int get hashCode => value.hashCode;
}